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Labby

Develop skills in Linux, DevOps, Cybersecurity, Programming, Data Science, and more through interactive labs and real-world projects.

Location Hong Kong Joined Joined on  Personal website https://labex.io/ twitter website
Ansible Automation Mastery: Hands-On Labs for Inventory Grouping, Apt Package Management, and the Fetch Module
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Ansible Automation Mastery: Hands-On Labs for Inventory Grouping, Apt Package Management, and the Fetch Module

#ansible #automation #tutorial #configuration
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2 min read

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Java Programming Labs: Calculate Sum of Digits, Standard Deviation, and Coordinate Subtraction (5 Hands-on Exercises)
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Java Programming Labs: Calculate Sum of Digits, Standard Deviation, and Coordinate Subtraction (5 Hands-on Exercises)

#java #programming #tutorial #standarddeviation
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3 min read
Nmap Hands-On: Explore Verbosity, UDP Scanning, and Network Discovery Techniques
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Nmap Hands-On: Explore Verbosity, UDP Scanning, and Network Discovery Techniques

#nmap #networkscanning #cybersecurity #udpscan
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2 min read
LabEx Launches 2025 Black Friday Deals
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LabEx Launches 2025 Black Friday Deals

#blackfriday #cybersecurity #linux #devops
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1 min read
Linux Security Auditing: 5 Hands-On Labs for Rsync Anonymous Sync, SMB Guest Access, and SSH Key Enumeration
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Linux Security Auditing: 5 Hands-On Labs for Rsync Anonymous Sync, SMB Guest Access, and SSH Key Enumeration

#linux #cybersecurity #sysadmin #hashcat
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3 min read
Apply Descendant Selectors & Background Styles: Essential CSS Techniques for HTML
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Apply Descendant Selectors & Background Styles: Essential CSS Techniques for HTML

#html #css #selectors #webdev
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2 min read
3 Hands-On PostgreSQL Labs: Setup, Data Filtering (WHERE/LIKE), and PL/pgSQL Error Handling
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3 Hands-On PostgreSQL Labs: Setup, Data Filtering (WHERE/LIKE), and PL/pgSQL Error Handling

#postgres #sql #plpgsql #filtering
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2 min read
NumPy Array Operations Challenge: Master Indexing, Slicing, and Binary Operations (3 Hands-On Labs)
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NumPy Array Operations Challenge: Master Indexing, Slicing, and Binary Operations (3 Hands-On Labs)

#numpy #python #datascience #tutorial
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2 min read
Alibaba Cloud Labs: Canary Releases with MSE, Kubernetes Log Mastery & Tomcat Session Sharing
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Alibaba Cloud Labs: Canary Releases with MSE, Kubernetes Log Mastery & Tomcat Session Sharing

#alibabacloud #kubernetes #devops #tutorial
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4 min read
RHEL Quick Start: 4 Hands-on Labs for Storage, Security, and Container Persistence
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RHEL Quick Start: 4 Hands-on Labs for Storage, Security, and Container Persistence

#rhel #linux #firewalld #lvm
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2 min read
RHCSA Prep: 4 Hands-On Labs for RHEL - Tar, Shell Scripting, User Groups, and Symbolic Links
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RHCSA Prep: 4 Hands-On Labs for RHEL - Tar, Shell Scripting, User Groups, and Symbolic Links

#rhel #rhcsa #linux #shellscripting
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2 min read
Java LocalDate: 5 Essential Methods (plus, ofEpochDay, now(Clock)) for Accurate Date Calculations
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Java LocalDate: 5 Essential Methods (plus, ofEpochDay, now(Clock)) for Accurate Date Calculations

#java #localdate #tutorial #dateapi
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3 min read
Database Essentials: Insert Student Data, MySQL Backup with mysqldump, and Index Optimization
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Database Essentials: Insert Student Data, MySQL Backup with mysqldump, and Index Optimization

#database #mysql #mysqldump #indexing
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2 min read
Python Coding Challenges: FizzBuzz, String Equality, and Heterogram Checks for Beginners
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Python Coding Challenges: FizzBuzz, String Equality, and Heterogram Checks for Beginners

#python #beginners #coding #fizzbuzz
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3 min read
Hydra Brute-Force: 5 Labs to Crack Telnet, HTTP, and FTP Credentials (Verify Installation & Speed)
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Hydra Brute-Force: 5 Labs to Crack Telnet, HTTP, and FTP Credentials (Verify Installation & Speed)

#hydra #bruteforce #pentesting #tutorial
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3 min read
SQLite Performance Tuning: 3 Practical Labs for PRAGMA, Indexing, and FTS5 Full-Text Search
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SQLite Performance Tuning: 3 Practical Labs for PRAGMA, Indexing, and FTS5 Full-Text Search

#sqlite #optimization #fts5 #sql
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2 min read
Jenkins CI/CD: Docker Installation, Interface Navigation, and Declarative Pipeline Tutorial
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Jenkins CI/CD: Docker Installation, Interface Navigation, and Declarative Pipeline Tutorial

#jenkins #cicd #devops #pipeline
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2 min read
4 HTML Challenges: Build a Custom Membership Card & Fix Display Issues with Real-World Code Labs
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4 HTML Challenges: Build a Custom Membership Card & Fix Display Issues with Real-World Code Labs

#html #webdev #beginners #labs
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3 min read
4 Linux Security Labs: Implementing CIA Triad, GPG Cryptography, and Detecting Command Injection Attacks
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4 Linux Security Labs: Implementing CIA Triad, GPG Cryptography, and Detecting Command Injection Attacks

#linux #security #cryptography #sysadmin
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3 min read
Red Hat Enterprise Linux: Configure Firewalld, Secure SSH Keys, and Container Persistence Labs
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Red Hat Enterprise Linux: Configure Firewalld, Secure SSH Keys, and Container Persistence Labs

#rhel #firewalld #ssh #containers
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2 min read
5 Hands-On Redis Labs: Sorted Sets, Pub/Sub Messaging, Transactions, and Security Configuration
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5 Hands-On Redis Labs: Sorted Sets, Pub/Sub Messaging, Transactions, and Security Configuration

#redis #database #tutorial #security
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3 min read
Hands-On MongoDB: 3 Labs to Filter Collections, Create Schemas, and Model User Profiles
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Hands-On MongoDB: 3 Labs to Filter Collections, Create Schemas, and Model User Profiles

#mongodb #nosql #database #tutorial
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2 min read
5 Pandas Labs: Master .query(), E-commerce String Cleaning, and Advanced Data Filtering with .where()
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5 Pandas Labs: Master .query(), E-commerce String Cleaning, and Advanced Data Filtering with .where()

#pandas #python #dataanalysis #tutorial
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3 min read
5 Python Projects for DevOps: Build a Network Scanner, Tkinter GUI, and Game Automation Scripts
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5 Python Projects for DevOps: Build a Network Scanner, Tkinter GUI, and Game Automation Scripts

#python #devops #scripting #automation
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3 min read
4 NumPy Labs: Array Creation, Advanced Indexing, Vectorized KNN, and Gradient Edge Detection
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4 NumPy Labs: Array Creation, Advanced Indexing, Vectorized KNN, and Gradient Edge Detection

#numpy #datascience #knn #tutorial
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3 min read
Scikit-Learn 4-Step Path: Mastering Classification with Naive Bayes, SVM, and Essential Metrics
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Scikit-Learn 4-Step Path: Mastering Classification with Naive Bayes, SVM, and Essential Metrics

#scikitlearn #machinelearning #classification #datascience
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3 min read
SQLite Mastery: 5 Labs on Database Backup, CTE Queries, and Linux Setup for Data Management
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SQLite Mastery: 5 Labs on Database Backup, CTE Queries, and Linux Setup for Data Management

#sqlite #sql #database #tutorial
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3 min read
Visualize Data Stories: 5 Matplotlib Labs on Subplots, Scatter, Pie Charts, and Histograms
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Visualize Data Stories: 5 Matplotlib Labs on Subplots, Scatter, Pie Charts, and Histograms

#matplotlib #python #dataviz #datascience
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2 min read
Nmap Mastery Path: 3 Hands-On Labs to Scan, Exploit Vulnerabilities, and Explore Verbosity Levels
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Nmap Mastery Path: 3 Hands-On Labs to Scan, Exploit Vulnerabilities, and Explore Verbosity Levels

#nmap #scanning #cybersecurity #exploitation
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2 min read
Red Hat Enterprise Linux: Hands-On Labs to Extend LVM, Troubleshoot SELinux Policy, and Master Shell Scripting
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Red Hat Enterprise Linux: Hands-On Labs to Extend LVM, Troubleshoot SELinux Policy, and Master Shell Scripting

#rhel #linuxadmin #selinux #shellscripting
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3 min read
Kali Linux Lab: Build Tool Directory, Nmap Port Scan, and Metasploit Console Start
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Kali Linux Lab: Build Tool Directory, Nmap Port Scan, and Metasploit Console Start

#kalilinux #nmap #metasploit #hacking
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2 min read
MongoDB Tutorial: Hands-On Labs to Create MongoDB Collection and Master NoSQL CRUD Operations
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MongoDB Tutorial: Hands-On Labs to Create MongoDB Collection and Master NoSQL CRUD Operations

#mongodb #nosql #tutorial #database
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1 min read
Alibaba Cloud Hands-On: Build AI with TensorFlow, Automate IaC with Terraform, and Secure Websites with WAF
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Alibaba Cloud Hands-On: Build AI with TensorFlow, Automate IaC with Terraform, and Secure Websites with WAF

#alibabacloud #tensorflow #terraform #waf
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2 min read
Hands-On Kali Linux Setup: Verify Version, Environment, and Tool Directory Structure
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Hands-On Kali Linux Setup: Verify Version, Environment, and Tool Directory Structure

#kalilinux #pentesting #cybersecurity #tutorial
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2 min read
Optimizing C++ Fibonacci Performance, Fixing C++14 Bugs, and Singleton Design: 5 Hands-On Labs
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Optimizing C++ Fibonacci Performance, Fixing C++14 Bugs, and Singleton Design: 5 Hands-On Labs

#cpp #performance #designpatterns #tutorial
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4 min read
MongoDB CRUD & Schema Design: 5 Labs to Write Queries, Filter, Delete, and Export Data
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MongoDB CRUD & Schema Design: 5 Labs to Write Queries, Filter, Delete, and Export Data

#mongodb #nosql #crud #schema
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2 min read
Docker Labs: Run Containers, Master Graceful Shutdown (Arctic Mission), and Image Repository Search
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Docker Labs: Run Containers, Master Graceful Shutdown (Arctic Mission), and Image Repository Search

#docker #containers #devops #tutorial
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2 min read
Bash Scripting for Linux Sysadmins: Automate File Metadata, User Management, and Logic Patterns
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Bash Scripting for Linux Sysadmins: Automate File Metadata, User Management, and Logic Patterns

#bash #linuxautomation #sysadmin #shell
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2 min read
JavaScript Kickstart: 4 Hands-On Labs for CSS Selectors, Box Shadows, and Array Manipulation
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JavaScript Kickstart: 4 Hands-On Labs for CSS Selectors, Box Shadows, and Array Manipulation

#javascript #css #webdev #tutorial
1
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2 min read
HTML Foundation to Full-Stack: 5 Labs Including Vue.js Task Manager and Flask URL Shortener
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HTML Foundation to Full-Stack: 5 Labs Including Vue.js Task Manager and Flask URL Shortener

#html #webdev #vue #flask
1
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3 min read
Hands-On MongoDB Labs: Insert Data, Update Records (Operators), and Export Data Fast
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Hands-On MongoDB Labs: Insert Data, Update Records (Operators), and Export Data Fast

#mongodb #nosql #database #tutorial
2
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2 min read
SQLite Mastery: Linux Setup, Efficient INNER/LEFT JOINs, and ON CONFLICT Error Handling
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SQLite Mastery: Linux Setup, Efficient INNER/LEFT JOINs, and ON CONFLICT Error Handling

#sqlite #sql #database #tutorial
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2 min read
5 MongoDB Labs: Filter, Sort, Export, and Delete Data Collections (Your First MongoDB Tutorial)
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5 MongoDB Labs: Filter, Sort, Export, and Delete Data Collections (Your First MongoDB Tutorial)

#mongodb #nosql #tutorial #filtering
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2 min read
Python Path Experiments: Run Scripts from CLI, Configure Networks, and Uncover Object Secrets with __dict__
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Python Path Experiments: Run Scripts from CLI, Configure Networks, and Uncover Object Secrets with __dict__

#python #cli #networking #tutorial
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2 min read
Learn Nmap Network Port Scanning: Hands-On SYN Scans and Target Specification for Security Auditing
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Learn Nmap Network Port Scanning: Hands-On SYN Scans and Target Specification for Security Auditing

#nmap #scanning #security #tutorial
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2 min read
Golang Fundamentals: Master Multidimensional Arrays, Strings, and Constants with 4 Hands-On Labs
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Golang Fundamentals: Master Multidimensional Arrays, Strings, and Constants with 4 Hands-On Labs

#go #arrays #beginners #tutorial
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2 min read
4 JavaScript Projects: Build a React Heatmap, DOM Game, Prize Draw, and Voting App
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4 JavaScript Projects: Build a React Heatmap, DOM Game, Prize Draw, and Voting App

#javascript #react #projects #tutorial
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3 min read
Jenkins Pipeline Tutorial: Git Integration, User Management & Declarative CI/CD in 5 Steps
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Jenkins Pipeline Tutorial: Git Integration, User Management & Declarative CI/CD in 5 Steps

#jenkins #pipeline #devops #tutorial
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3 min read
Git Mastery Labs: Advanced Staging, History Rewriting, and Commit Manipulation Techniques
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Git Mastery Labs: Advanced Staging, History Rewriting, and Commit Manipulation Techniques

#git #versioncontrol #tutorial #devops
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2 min read
Scikit-learn Hands-On: 5 Projects from Iris k-NN to Credit Risk Prediction
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Scikit-learn Hands-On: 5 Projects from Iris k-NN to Credit Risk Prediction

#scikitlearn #machinelearning #tutorial #creditrisk
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3 min read
3 Hands-On Kali Linux Labs: Exploring Security Tools, Building Directory Structure, and Verifying System Version
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3 Hands-On Kali Linux Labs: Exploring Security Tools, Building Directory Structure, and Verifying System Version

#kalilinux #ethicalhacking #cybersecurity #penetrationtesting
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2 min read
Docker Swarm & Registry: Hands-On Guide to Packaging, Connecting & Orchestrating Apps
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Docker Swarm & Registry: Hands-On Guide to Packaging, Connecting & Orchestrating Apps

#docker #containerization #devops #swarm
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3 min read
Ansible Core Modules: Hands-on Labs for get_url, cron, command, local_action
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Ansible Core Modules: Hands-on Labs for get_url, cron, command, local_action

#ansible #automation #devops #tutorial
1
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2 min read
NumPy Math Games: Master Array Indexing & Operations in Python
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NumPy Math Games: Master Array Indexing & Operations in Python

#numpy #python #arrays #tutorial
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2 min read
MySQL Path: 4 Hands-On Challenges for Data Entry, User Management, Multi-Table Queries & Sales Analysis
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MySQL Path: 4 Hands-On Challenges for Data Entry, User Management, Multi-Table Queries & Sales Analysis

#mysql #database #sql #tutorial
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2 min read
C++ Labs: Build Calculator, Manipulate Strings, & Master Class Inheritance
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C++ Labs: Build Calculator, Manipulate Strings, & Master Class Inheritance

#cpp #programming #oop #tutorial
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2 min read
PostgreSQL Advanced Queries & Data Types: A Practical Guide to Robust Data Management
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PostgreSQL Advanced Queries & Data Types: A Practical Guide to Robust Data Management

#postgres #database #sql #tutorial
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3 min read
HTML Text Formatting & Lists: Mastering Italic, Emphasized Text & Description Lists
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HTML Text Formatting & Lists: Mastering Italic, Emphasized Text & Description Lists

#html #formatting #webdev #tutorial
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2 min read
NumPy Arrays & Bitwise Ops: Create, Manipulate, and Explore with Python
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NumPy Arrays & Bitwise Ops: Create, Manipulate, and Explore with Python

#numpy #python #arrays #bitwise
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2 min read
RHEL 9 Hands-On: Logs, Permissions, Containers & Process Scheduling
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RHEL 9 Hands-On: Logs, Permissions, Containers & Process Scheduling

#rhel #linux #rhcsa #containers
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2 min read
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